Raphael Martins—
I turn ideas and processes into useful, scalable systems.
Tailored digital solutions to organize, automate, and help your business evolve.
Projects
Rateio Justo
Mobile-first serverless webapp for fair bill splitting item by item. 100% serverless architecture on Vercel with geolocation via Google Places, optional AI text parser, and PIX payment.
Deploy: Vercel (Serverless)
DOPA Check
Mobile-first web platform for habit tracking and challenges with quick check-ins, visual progress dashboard, and WhatsApp integration. 68% completion rate vs 23% market average.
Deploy: VPS (Docker)
Trady.chat
Complete platform for traders with 3 integrated products: Trading Diary (voice narration in Pro version), Smart Economic Calendar (AI + alerts 5min before critical events), and B3 Real-time Quotes Grid.
Deploy: VPS (Docker + GitHub Actions)
iAssistente.online
Pioneer concept of AI Agents via messaging created at the beginning of the LLM hype (2022-2023). The idea was to offer intelligent agents operating via WhatsApp/API for conversational automation. Project pivoted after massive AI evolution made it less differentiated.
Deploy: Concept
About
I'm a Full-Stack Software Engineer with over 20 years of experience developing digital solutions focused on performance, automation, and real impact.
I work as a freelancer for companies and startups that need more than just a dev: they need someone who thinks like a founder and executes like an engineer.
Expert in PHP (Laravel), Vue.js (Nuxt 3), TypeScript, REST APIs, AI automation, WhatsApp integrations (Evolution API), Technical SEO, and DataLayer (GA, GTM). MVPs in weeks, direct communication, business-focused deliveries.
Worked on large-scale e-commerce (Casa Bahia / Via Varejo, Infracommerce / Unilever), developed platforms for insurance (DQR Tech / Coris) and fintechs (Fisoft / Valuin). Completed The Cloud Bootcamp (AWS, Azure, GCP) and have experience with Docker, GitHub Actions, VPS, and serverless architectures.
Today I build my own SaaS products: Rateio Justo (100% serverless with Hono + Vercel), DOPA Check (habit tracking with WhatsApp), Trady.chat (trading diary + AI), and iAssistente.online (AI agents via messaging).
In the financial market, I developed MQL5 bots for MetaTrader 5 and features with real-time market analysis. Advanced English.
Stack & Expertise
Backend & APIs
Frontend & UI
AI Tools & Vibe Coding
Database & Storage
Cloud & Serverless
SEO & Analytics
AI & Automação
Auth & Payments
E-commerce & CMS
Trading & Finance
Architectures & Deployment
Serverless
Vercel Edge Functions
Rateio Justo
VPS + Docker
Containerized Apps
DOPA Check
Docker + CI/CD
GitHub Actions
Trady.chat
Professional Experience
Raphael-Martins.com — Freelancer
2004 – present
On-demand solutions development. Own SaaS with Laravel and Nuxt, AI and messaging integrations
DQR Tech — Fullstack Developer
2025
Legacy PHP 7.4 system, SQL Server and Azure for travel insurance sector (Coris)
Fisoft — Front-End Developer
2024
Complete front-end of Valuin.app in Nuxt 3 (TypeScript, Composition API)
Infracommerce — Fullstack Developer
2021 – 2024
Compra Food Service e-commerce (Unilever). Vue.js, jQuery, PHP, MySQL
Via Varejo / FCamara — Sr. Fullstack Developer
2016 – 2020
Casa Bahia: Tag manager, affiliate scripts, mobile site AngularJS/TypeScript. Award-winning features
The Cloud Bootcamp
Certification
Multicloud & DevOps - AWS, Azure, GCP